Here is the jumpseat list... http://aircar.com/acci/jumpseat_Info.asp

Most of the runs go into Louisville. As far as getting a base..you will put in your dream sheet of where you want to go...if they can't give you any of those they will put you where they need you, then when one of your bids opens up, and as nobody above you wants it, you will get it. Once you get a run you put a bid in for, you are there for at least 90 days...they WILL NOT kick you out of your base to put in someone more senior, it is yours until you leave. If they put you somewhere you didn't want to go, they will pay for moving expenses, or on your FIRST move of one of your choces (fuel and hotel for 2 weeks).

Since there are a few runs into SDF, you should get there sooner than later.